No is a full sentence. Even if you mean well and fully plan to help someone else, if they tell you 'no', you just have to respect them and accept it. The response to this Reddit story was split between people who judged the struggling driver's decision to decline the help she was offered, and people who thought this petty act of revenge was actually pretty stupid. So let's back up to explain it properly, and you can tell us who you think is wrong. This man, who is called Luigi in the story, was…

‘I ain’t even own a washcloth before you'

Shakespeare was on to something.